19191627

素因数分解:

$3^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{107}}^1$

素因数の和:209

約数の個数: 64

約数和(自身を含む): 35804160

約数和(自身を除く): 16612533

約数列:

[1, 3, 7, 9, 13, 21, 27, 39, 63, 73, 91, 107, 117, 189, 219, 273, 321, 351, 511, 657, 749, 819, 949, 963, 1391, 1533, 1971, 2247, 2457, 2847, 2889, 4173, 4599, 6643, 6741, 7811, 8541, 9737, 12519, 13797, 19929, 20223, 23433, 25623, 29211, 37557, 54677, 59787, 70299, 87633, 101543, 164031, 179361, 210897, 262899, 304629, 492093, 710801, 913887, 1476279, 2132403, 2741661, 6397209, 19191627]

約数ペア:

[(1, 19191627), (3, 6397209), (7, 2741661), (9, 2132403), (13, 1476279), (21, 913887), (27, 710801), (39, 492093), (63, 304629), (73, 262899), (91, 210897), (107, 179361), (117, 164031), (189, 101543), (219, 87633), (273, 70299), (321, 59787), (351, 54677), (511, 37557), (657, 29211), (749, 25623), (819, 23433), (949, 20223), (963, 19929), (1391, 13797), (1533, 12519), (1971, 9737), (2247, 8541), (2457, 7811), (2847, 6741), (2889, 6643), (4173, 4599)]